How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 4/8100.0*Chance in playoffs100.0*Average seed
Swarm 17 Mammoth 10 +7.4
+0.3
Bandits 14 Knighthawks 12 +3.4
+0.1
Roughnecks 16 Stealth 12 -2.3
Black Wolves 14 Rush 13 -0.6
Rock 10 Black Wolves 14 +0.5
+0.1
Week of 4/15100.0*Chance in playoffs100.0*Average seed
Rock 12 Bandits 9 -0.3
-0.1
Bandits 14 Rock 8 +0.1
+0.1
If winner is:HomeAway
Stealth vs Roughnecks+7.5-6.7
+0.3-0.3

What If

Chances based on how well the Swarm finish out the regular season.   Explain

100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789Count
92-0In23775,595,952
81-177.7%43352210,817,934
70-242.74353134,781,522
Total:75.7%64227230121,195,408
Games Above .500
Chance Will Make Playoffs